Blood Aspirant is a common Creature — Satyr Berserker card from Commander Masters (CMM), collector number 208. Current market price: $0.18 (foil $0.25), TCGplayer market prices via Scryfall.
Whenever you sacrifice a permanent, put a +1/+1 counter on this creature. {1}{R}, {T}, Sacrifice a creature or enchantment: This creature deals 1 damage to target creature. That creature can't block this turn.